I don’t know if you received my last reply. The Emergency Stop is depressed during shipment and no where in the instructions (at least I could not find) does it say to release it. I just happen to see the guy in the video release it, the link you send me. Thank God… The other problem is that one of the other videos online are wrong about the x-axis limit switch, I had the black and red wires reversed; this was causing the laser to bounce and grind into the “home” corner. I have not engraved yet, but I did test the laser and it’s working. Thanks for working with me on this and Good Luck to you.